fix: 🐛 close the unterminated ignoreWords array in cspell.json

The file was invalid JSON, so cSpell silently fell back to its defaults.

Author: Panadestein

cspell.json

@@ -126,5 +126,6 @@
         "sparray",
         "spsolve",
         "todense",
-        "triu",
-    }
+        "triu"
+    ]
+}